Now the fourth parameter of IO_APIC_get_PCI_irq_vector() is useless,
so kill it.  Assume it's only used by ibmphp PCI hotplug driver
though IO_APIC_get_PCI_irq_vector() has been exported,

Signed-off-by: Jiang Liu <jiang....@linux.intel.com>
---
 arch/x86/include/asm/hw_irq.h     |    2 +-
 arch/x86/kernel/apic/io_apic.c    |   13 +++----------
 arch/x86/pci/irq.c                |    6 ++----
 drivers/pci/hotplug/ibmphp_core.c |    5 +----
 4 files changed, 7 insertions(+), 19 deletions(-)

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 4615906d83df..64330c2e172e 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -158,7 +158,7 @@ extern void send_cleanup_vector(struct irq_cfg *);
 struct irq_data;
 int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
                          unsigned int *dest_id);
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct 
io_apic_irq_attr *irq_attr);
+extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
 extern void setup_ioapic_dest(void);
 
 extern void enable_IO_APIC(void);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index f054c8803939..20e1be110ddb 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1179,8 +1179,7 @@ void mp_unmap_irq(int irq)
  * Find a specific PCI IRQ entry.
  * Not an __init, possibly needed by modules
  */
-int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin,
-                               struct io_apic_irq_attr *irq_attr)
+int IO_APIC_get_PCI_irq_vector(int bus, int slot, int pin)
 {
        int irq, i, best_ioapic = -1, best_idx = -1;
 
@@ -1234,14 +1233,8 @@ int IO_APIC_get_PCI_irq_vector(int bus, int slot, int 
pin,
                return -1;
 
 out:
-       irq = pin_2_irq(best_idx, best_ioapic, mp_irqs[best_idx].dstirq,
-                       IOAPIC_MAP_ALLOC);
-       if (irq > 0)
-               set_io_apic_irq_attr(irq_attr, best_ioapic,
-                                    mp_irqs[best_idx].dstirq,
-                                    irq_trigger(best_idx),
-                                    irq_polarity(best_idx));
-       return irq;
+       return pin_2_irq(best_idx, best_ioapic, mp_irqs[best_idx].dstirq,
+                        IOAPIC_MAP_ALLOC);
 }
 EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector);
 
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index a47e2dea0972..7765b3facd4b 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -1200,14 +1200,12 @@ static int pirq_enable_irq(struct pci_dev *dev)
 #ifdef CONFIG_X86_IO_APIC
                        struct pci_dev *temp_dev;
                        int irq;
-                       struct io_apic_irq_attr irq_attr;
 
                        if (dev->irq_managed && dev->irq > 0)
                                return 0;
 
                        irq = IO_APIC_get_PCI_irq_vector(dev->bus->number,
-                                               PCI_SLOT(dev->devfn),
-                                               pin - 1, &irq_attr);
+                                               PCI_SLOT(dev->devfn), pin - 1);
                        /*
                         * Busses behind bridges are typically not listed in 
the MP-table.
                         * In this case we have to look up the IRQ based on the 
parent bus,
@@ -1221,7 +1219,7 @@ static int pirq_enable_irq(struct pci_dev *dev)
                                pin = pci_swizzle_interrupt_pin(dev, pin);
                                irq = 
IO_APIC_get_PCI_irq_vector(bridge->bus->number,
                                                PCI_SLOT(bridge->devfn),
-                                               pin - 1, &irq_attr);
+                                               pin - 1);
                                if (irq >= 0)
                                        dev_warn(&dev->dev, "using bridge %s "
                                                 "INT %c to get IRQ %d\n",
diff --git a/drivers/pci/hotplug/ibmphp_core.c 
b/drivers/pci/hotplug/ibmphp_core.c
index f7b8684a7739..adb85e1726d1 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -155,13 +155,10 @@ int ibmphp_init_devno(struct slot **cur_slot)
        for (loop = 0; loop < len; loop++) {
                if ((*cur_slot)->number == rtable->slots[loop].slot &&
                    (*cur_slot)->bus == rtable->slots[loop].bus) {
-                       struct io_apic_irq_attr irq_attr;
-
                        (*cur_slot)->device = 
PCI_SLOT(rtable->slots[loop].devfn);
                        for (i = 0; i < 4; i++)
                                (*cur_slot)->irq[i] = 
IO_APIC_get_PCI_irq_vector((int) (*cur_slot)->bus,
-                                               (int) (*cur_slot)->device, i,
-                                               &irq_attr);
+                                               (int) (*cur_slot)->device, i);
 
                        debug("(*cur_slot)->irq[0] = %x\n",
                                        (*cur_slot)->irq[0]);
-- 
1.7.10.4

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